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Lymphatic/Immune System (Lymph nodes (Structure (Afferent vessels (lymph…
Lymphatic/Immune System
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Lymphatic cells
T (thymus) - Lymphocytes
Bind w/ foreign cell antigen, secrete proteins into cell that lyse the cell (cell dies)
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Lymph nodes
Structure
Afferent vessels (lymph vessels), 1-2 efferent vessels, reticular CT, lymphocytes
Function
"Filter", destroy antigens, pathogens (foreign cells)
Major locations
Cervical, axillary, mediastinum, abdominal aorta, iliac arteries
MALT
Structure
Loose CT, abundant lymphocytes
Location
Anywhere there is an opening into the body (digestive, respiratory, urinary, reproductive system)
Function
Destroy antigens, pathogens, foreign cells as they enter the body, prevent infection of foreign cells
Tonsils
Location
Pharynegeal, palatine, lingual, tubal
Function
Trap foreign cells, destroy and create memory lymphocytes
Roles of leukocytes
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Agranulocytes
Lymphocytes
Fight against infectious organisms (T, B cells)
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